AKG K545 White Over Ear Headphone, closed back, impedance 32 ohms, efficiency 97 dB, frequency range 10 -25000 Hz, max. input power 50mW, weight excluding cable: 282g, includes 2 cables with 1,2 m length: 1x with universal control/mic and 3,5 mm plug, 1x with apple compatible control/mic and 6,3 mm adapter, colour: white/blue